Loans - Summary of Loans Modified Due to Financial Difficulty (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	$ 23	$ 23
Term Extension
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	13	13
Term Extension and Payment Delay
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	10	10
Residential real estate
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	13	13
Residential real estate | Term Extension
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	13	13
Residential real estate | Term Extension and Payment Delay
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	0	0
Commercial, financial & agricultural
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	10	10
Commercial, financial & agricultural | Term Extension
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	0	0
Commercial, financial & agricultural | Term Extension and Payment Delay
Financing Receivable, Modified [Line Items]
Loans modified due to financial difficulty	$ 10	$ 10